From: Baolu Lu <baolu.lu@linux.intel.com>
To: Pranjal Shrivastava <praan@google.com>,
iommu@lists.linux.dev, linux-pci@vger.kernel.org,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org
Cc: Joerg Roedel <joro@8bytes.org>, Will Deacon <will@kernel.org>,
Bjorn Helgaas <bhelgaas@google.com>,
David Woodhouse <dwmw2@infradead.org>,
Robin Murphy <robin.murphy@arm.com>,
Suravee Suthikulpanit <suravee.suthikulpanit@amd.com>,
Jason Gunthorpe <jgg@ziepe.ca>,
Nicolin Chen <nicolinc@nvidia.com>,
David Matlack <dmatlack@google.com>,
Samiullah Khawaja <skhawaja@google.com>,
Daniel Mentz <danielmentz@google.com>,
Pasha Tatashin <pasha.tatashin@soleen.com>,
Mostafa Saleh <smostafa@google.com>,
Jason Gunthorpe <jgg@nvidia.com>
Subject: Re: [PATCH v5 1/7] PCI/ATS: Ensure pci_ats_supported() is PF-aware for VFs
Date: Fri, 29 May 2026 14:02:50 +0800 [thread overview]
Message-ID: <027de4e2-b3a0-4a02-b827-31163388bd6f@linux.intel.com> (raw)
In-Reply-To: <20260528202353.3422206-2-praan@google.com>
On 5/29/26 04:23, Pranjal Shrivastava wrote:
> Update pci_ats_supported() to additionally check the associated PF's
> status when called on a VF. This ensures that PF-level quirks and
> untrusted status are correctly propagated to VFs, providing a robust
> support check that aligns with the kernel's PF-centric ATS configuration
> model and is immune to the timing of VF-specific fixups.
>
> Reviewed-by: Jason Gunthorpe<jgg@nvidia.com>
> Reviewed-by: Samiullah Khawaja<skhawaja@google.com>
> Reviewed-by: Nicolin Chen<nicolinc@nvidia.com>
> Signed-off-by: Pranjal Shrivastava<praan@google.com>
> ---
> drivers/pci/ats.c | 7 +++++--
> 1 file changed, 5 insertions(+), 2 deletions(-)
Reviewed-by: Lu Baolu <baolu.lu@linux.intel.com>
next prev parent reply other threads:[~2026-05-29 6:03 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-05-28 20:23 [PATCH v5 0/7] iommu: Standardize ATS robustness and state tracking Pranjal Shrivastava
2026-05-28 20:23 ` [PATCH v5 1/7] PCI/ATS: Ensure pci_ats_supported() is PF-aware for VFs Pranjal Shrivastava
2026-05-29 6:02 ` Baolu Lu [this message]
2026-05-28 20:23 ` [PATCH v5 2/7] PCI/ATS: Validate STU for VFs in pci_prepare_ats() Pranjal Shrivastava
2026-05-29 6:05 ` Baolu Lu
2026-05-28 20:23 ` [PATCH v5 3/7] PCI/ATS: Decouple pci_ats_supported() from pci_prepare_ats() Pranjal Shrivastava
2026-05-29 6:29 ` Baolu Lu
2026-05-29 7:08 ` Pranjal Shrivastava
2026-05-28 20:23 ` [PATCH v5 4/7] iommu/arm-smmu-v3: Standardize ATS enablement failure reporting Pranjal Shrivastava
2026-05-28 20:23 ` [PATCH v5 5/7] iommu/vt-d: Fix RB-tree corruption and Use-After-Free in probe Pranjal Shrivastava
2026-05-29 3:20 ` Baolu Lu
2026-05-29 7:04 ` Pranjal Shrivastava
2026-05-28 20:23 ` [PATCH v5 6/7] iommu/vt-d: Fail probe on ATS configuration failure Pranjal Shrivastava
2026-05-29 6:39 ` Baolu Lu
2026-05-29 7:03 ` Pranjal Shrivastava
2026-05-28 20:23 ` [PATCH v5 7/7] iommu/amd: " Pranjal Shrivastava
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